Improvement in air-guns and pistols



intmi Ctatnt @anni @titille Letters Patent No. 90,749, dated .Time 1,1869.

IMPROVEMENT IN AIR-GUNS AND PISTOLS.

The Schedule referred to in these Letters Patent and making part of thesame.v

'construction and operation oi' the` same," reference being had to theannexed drawings, making a part of this specification, in which- Figurel is a half size perspective view; Figure 2, a full size longitudinalelevation Figure 3, a full size transverse section; A Figure 4, halfsize transverse section of the airpump; and. f

Figure 5, a full size sectional view of the puppetvalve.

The nature of my invention consists in making the reservoir of condensedair form the stock of the pistol or gun; in reloading but a portion, oracharge of the condensed air at a time, by the percussion of a spring,cock, or hammer on the puppet-valve, the air thus escaping forcing theprojectile through the dischargebarrel; and in forming my pistol orgun-stock in such a manner that the condensing-pump and dischargebarrelshall have separate places of attachment, both firmly ixed, and in nomanner interfering with the working of each other.- I

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

I construct my air-pistol or gun ofmetal, hard rnbber, or any suitablematerial, either cast, swaged, or

moulded, as the material may require, in any of the known forms of adouble-barrel pistol or gun.

The'stock a a is formed of sufficient strength to stand the pressure ofthe condensed air; it encloses the reservoir c o and thedischarge-passage l d, which are separated by the diaphragm b b. (Seefigs. 2 and 3.) The reservoir c c extends to that part of the stock a ato which the condensing air-pump o o is attached,

and has free communication with it. (See tig. 3.

'Ihe air-pump o o, where it is attached to the stock a a, is turneddown, to form a shoulder. Between this shoulder and the end of the stocka leather washer is placed, to form a tight joint.

A male screw is cut on the end of the pump-barrel o o, corresponding tothe lesser diameter ofthe shoulder, which fits a female screw in the endof the stock a ft',- beyond this screw it is still more turned down.

A small hole, p 1), is .bored from the inside of the pump-barrel o o,through the axis, and not quite to the end of this smallest part. Y

At half the length of this portion of the pump-barrel smaller holes 9 9are bored from the outside, intel'- secting the bore through its axis 11p.

The valve on .the end pf the pnmpbarrel o o is formed by stretching asmall piece of rubber-tubin g, &r c, oveJ this small part, covering theholes 9 9.

At the end of this small part a knob is formed, to prevent the elastictubing c cf'rom slipping oft". (See figs. 3 and 4.) v

The condensing air-pump o o is fitted with a piston and rod,'rfr,terminating in the knob or handle s, and is prevented from beingwithdrawn by 'accident by theV coupling t.

When a vacuum is formed in the interior, p p, of the pump-barrel, bypulling ont the piston and rod the air rushes in, and illsit through theholes 7 7. (See iig. 4.)

When the piston is forced in, the air before it raises the rubber valve&' &,which prevents its returning again co the) pump-barrel, passinginto the reservoir o c. (See The condensed air is prevented from passingthrough the opening e e, in the diaphragm b b, into thedischarge-passage ll d, (see figs. 2 and 3,) by the puppetvalve f, iig.2. n

An opening is made through the outside of the stock a a, in Awhich isfitted the screw-plug t, forming an airtight joint. (See figs. l and 2.)Through thisopening the puppet-valve f, iig'. 2, is introduced, and canbe repaired when necessary.'

The puppet-valve f iskept in its placel by the spiral spring h. Its stemg is prolonged, passing throughthe stock a a, opposite to the plug t.

Then the spring, or hammer k is at rest, a spaceis left between it andthe valve-stem g, allowing the valve fto rest on its seat.

A slot, is cut through the spring, or hammer k, to allow the trigger lto pass through.

When the spring k is pulled open, the sere-spring m throws the trigger lforward until the notch 8 catches the spring k, and prevents itsreturning.

When the spring lo is released, by pulling the trigger l, its momentumcarries it beyond its place of rest, striking the valve-stem g, andraising the Valve f, and allowing a charge ofthe condensed air to escapethrough the opening c into the air-passage d d, (see iig. 2,) and thedischarge-barrel u u, figs. l and 3.

'Ihe valve, fig. 5, is formed oi' the metal disk f, through the centreof which, and firmly attached, the valve-stem g'projects. The longerportion of the stem gis adjusted the proper length to receive the blowwhich raises it, and the .shorter portion to keep the spiral spring h,iig-2, in its place, and is adjusted the proper length to prevent thevalve being raised too high by its coming in contact with the screw-plugi, fig. 2.

LThe disk f, fig. 5, may beform'ed with eitheradat,bevel, I

or spherical face. It is covered with rubber by stretching a piece ofelastic-rubber tubing, 6 6, over it, whose inside diameter is equal tothe diameter ofthe stem g,

and its length is sufficient to touch the stem g, both sides' of thedisk f forming a valve that neither it nor its seat 'requires grinding.

The lug w, iig. 2, is formed on the stock a a, on which is formed halfof the hinge l of the ring 1f u, zuid prevent its beinfor displaced.(See fr 1: is a. ring, from which a. ing corresponding to w, l 1. Themanner of covering the disk f of the puppetis formed, on which the otherhalf' of the hinge is valve with a skin of elastic rubber, for thepurposes made. above described and set forth.

The barrel u u projects through the ring u o a suf- 2. So arranging thepuppet-valve f of nn air-gun, in

cient distance to holdztleather washer against the fece relation to thestock and barrel thereof, that the same nmybe operated by means of aspring7 cock, or hamig. 2.) I mer, outside of ltud unenclosed by thestock, substan- The barrel u u is loaded by breaking it over, as seentially as and for`the purpose specified. in fig. 2, and inserting theprojectile in its breech; it E. H. HAVVLEY. is then brought to theposit-ion shown in figs. l and 3,

when the spring z z slips over the ring law, and secures YVitnesses: itto its place. WILLIAM H. HALLADAY.

What I claim as my invention, and desire to secure H. G. HAWLEY.

by Letters Patent, is-

